Invention Grant
- Patent Title: Pitch link with track adjustment indicators
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Application No.: US15656929Application Date: 2017-07-21
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Publication No.: US10239609B2Publication Date: 2019-03-26
- Inventor: Hunter Jay Davis , Mark Adam Wiinikka
- Applicant: Bell Helicopter Textron Inc.
- Applicant Address: US TX Fort Worth
- Assignee: BELL HELICOPTER TEXTRON INC.
- Current Assignee: BELL HELICOPTER TEXTRON INC.
- Current Assignee Address: US TX Fort Worth
- Agency: Slater Matsil, LLP
- Main IPC: B64C27/54
- IPC: B64C27/54 ; B64C27/605 ; F16C7/06

Abstract:
A system and method for measuring, or otherwise determining pitch length adjustments to a pitch link coupled to a rotor blade in a rotorcraft includes vertical track adjustment indicators machined onto an exterior of the tube of the pitch link and a vertical reference indicator machined onto an exterior of the upper or the lower rod of the pitch link. A metric of a pitch length adjustment can be determined by tracking or counting how many track adjustment indicators pass the reference indicator while the tube of the pitch link is being turned in either direction for increasing or decreasing the pitch length. The track adjustment indicators can be relied upon to track one or a series of adjustments for tracking a rotor blade installed in a rotor assembly.
Public/Granted literature
- US20190023387A1 PITCH LINK WITH TRACK ADJUSTMENT INDICATORS Public/Granted day:2019-01-24
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